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  2. Erector spinae muscles - Wikipedia

    en.wikipedia.org/wiki/Erector_spinae_muscles

    The erector spinae (/ ɪ ˈ r ɛ k t ər ˈ s p aɪ n i / irr-EK-tər SPY-nee) [1] or spinal erectors is a set of muscles that straighten and rotate the back. The spinal erectors work together with the glutes ( gluteus maximus , gluteus medius and gluteus minimus ) to maintain stable posture standing or sitting .

  3. Epaxial and hypaxial muscles - Wikipedia

    en.wikipedia.org/wiki/Epaxial_and_hypaxial_muscles

    Epaxial muscles include other (dorsal) muscles associated with the vertebrae, ribs, and base of the skull. In humans, the erector spinae, the transversospinales (including the multifidus, semispinalis and rotatores), the splenius and suboccipital muscles are the only epaxial muscles. Hypaxial and epaxial muscles develop directly from somitic ...

  4. Longissimus - Wikipedia

    en.wikipedia.org/wiki/Longissimus

    The longissimus thoracis et lumborum is the intermediate and largest of the continuations of the erector spinae.. In the lumbar region (longissimus lumborum), where it is as yet blended with the iliocostalis, some of its fibers are attached to the whole length of the posterior surfaces of the transverse processes and the accessory processes of the lumbar vertebrae, and to the anterior layer of ...

  5. The 15 Best Core Workouts You Can Do at Home, No ... - AOL

    www.aol.com/15-best-core-workouts-home-100000707...

    Muscles Worked: Erector spinae muscles (which help with spine stabilization), rectus abdominis and glutes. Common Mistakes: Arching the spine, rotating the hips, shifting your body weight from ...

  6. Hyperextension (exercise) - Wikipedia

    en.wikipedia.org/wiki/Hyperextension_(exercise)

    A back extension is an exercise that works the lower back as well as the mid and upper back, specifically the erector spinae muscles. There are two erector spinae, one on either side of the spine, that run along its length. These are formed of three smaller muscles – spinalis, longissimus, and iliocostalis. [1]

  7. Piriformis muscle - Wikipedia

    en.wikipedia.org/wiki/Piriformis_muscle

    The piriformis muscle (from Latin piriformis 'pear-shaped') is a flat, pyramidally-shaped muscle in the gluteal region of the lower limbs. It is one of the six muscles in the lateral rotator group . The piriformis muscle has its origin upon the front surface of the sacrum , and inserts onto the greater trochanter of the femur .

  8. Lumbar fascia - Wikipedia

    en.wikipedia.org/wiki/Lumbar_fascia

    The posterior layer is thick, being reinforced by the aponeurosis (origin) of the latissimus dorsi muscle. [1]: 274 It consists of a superficial lamina derived primarily from the latissimus dorsi and serratus posterior inferior, and a deeper lamina which forms a retinacular sheet encapsulating the paraspinal muscles. [3]

  9. Iliocostalis - Wikipedia

    en.wikipedia.org/wiki/Iliocostalis

    Iliocostalis muscle has a common origin from the iliac crest, the sacrum, the thoracolumbar fascia, and the spinous processes of the vertebrae from T11 to L5. [1]Iliocostalis cervicis (cervicalis ascendens) arises from the angles of the third, fourth, fifth, and sixth ribs, and is inserted into the posterior tubercles of the transverse processes of the fourth, fifth, and sixth cervical vertebrae.

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